Nafion Dryer Purge Gas Method # 1 – Instrument Air or Dry Gas
- Purge Gas Flow Rate – Typically 2-3x of the Sample Flow, to be adjusted as necessary for optimum performance.
- Instrument Quality Compressed Air – Our recommended purge gas – the dew point of this purge gas is typically around -40° C. Most of our performance curves have been made using instrument air.
- Standard Quality Compressed Air – Standard wet compressed air, which may carry an oil mist must be filtered clean as dirt and oil in the air will collect on the dryer tubes and can cause a drop in performance over time.
- Local Air Compressor – An air compressor with an ultra-low dew point rating may be deployed in an analyzer station for clean and dry purge gas.
- Nitrogen or other Cylinder gas – Using ultra-dry cylinder gas with a dew point of -60° or -70°C can yield even better results than shown on our performance curves.